CAR is reporting Audi will launch the A3 e-tron in the UK in 2015. Next-gen A4 and Q7 e-tron versions will follow.

The magazine's sources are estimating a 30-mile (48 km) range in electric mode and CO2 emissions of less than 76 g/km. It will have a gasoline engine as a backup and its batteries will be charged from a socket, unlike the full hybrid A6 and A8 models which are already on sale.

If you recall, Audi unveiled the A3 e-tron concept two years ago at Auto Shanghai. It was based on the A3 concept and came with a 4-cylinder, 1.4-liter TFSI engine producing 207 hp (155 kW) and an electric motor providing 27 hp (20 kW). It offered a total power of 234 hp (175 kW) and had a 7-speed S tronic transmission which enabled the concept to do the 0-62 mph (0-100 km/h) run in 6.8 seconds and reach 144 mph (231 km/h).

The concept came with 12 kWh lithium-ion batteries installed behind the rear seats which allowed the A3 e-tron to provide a range of up to 34 miles (54 km) on electric power.

In related news, the same source is echoing previous reports that Audi has cancelled the R8 e-tron due to high development costs, limited range and weak demand for such a model.

Note: 2011 Audi A3 e-tron concept pictured

Gallery: Audi A3 e-tron due in 2015, R8 e-tron axed - report

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